package cn.tedu.weibo.controller;

import cn.tedu.weibo.entity.User;
import cn.tedu.weibo.mapper.UserMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpSession;

@RestController
public class UserController {
    @Autowired(required = false)
    UserMapper mapper;

    @RequestMapping("/reg")
    public int reg(User user) {
        User u = mapper.selectByUsername(user.getUsername());
        if (u != null) {
            return 2;
        }
        mapper.insert(user);
        return 1;
    }

    @RequestMapping("/login")
    public int login(User user , HttpSession session) {
        User u = mapper.selectByUsername(user.getUsername());
        if (u != null) {
            if (u.getPassword().equals(user.getPassword())) {
                //把当前登录成功的用户对象保存到Session会话对象
                session.setAttribute("u",u);

                return 1;//登录成功
            }
            return 3;//密码错误
        }
        return 2;//用户名不存在
    }

    @RequestMapping("/currentUser")
    public User currentUser (HttpSession session){
        return (User) session.getAttribute("u");
    }

    @RequestMapping("/logout")
    public void logout(HttpSession session){
        //
        session.removeAttribute("u");
    }

}
